CN103153549A - Hand-held electric tool having a spindle-locking device - Google Patents
Hand-held electric tool having a spindle-locking device Download PDFInfo
- Publication number
- CN103153549A CN103153549A CN2011800497127A CN201180049712A CN103153549A CN 103153549 A CN103153549 A CN 103153549A CN 2011800497127 A CN2011800497127 A CN 2011800497127A CN 201180049712 A CN201180049712 A CN 201180049712A CN 103153549 A CN103153549 A CN 103153549A
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- Prior art keywords
- drive shaft
- bearing
- supporting member
- electric tool
- principal axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
Abstract
The invention relates to a hand-held electric tool (100) having a tool housing (105) in which is disposed gearing (170) for transmitting torque generated by a drive motor (180) to a drive spindle (120) with which a spindle-locking device (250) is associated. The drive spindle (120) is rotatably mounted in the tool housing (105) at at least two mounting points (132, 134) which are provided in the tool housing (105) in a region downstream of the gearing (170), and the spindle-locking device (250) is disposed in the axial direction of the drive spindle (120) between the two mounting points (132, 134).
Description
Technical field
The present invention relates to a kind of hand held electric tool, has tool housing, be furnished with one and be used for the transmission of torque that will be produced by the CD-ROM drive motor transmission device on the drive shaft in this tool housing, this drive shaft is equipped with spindle lock, wherein, drive shaft can be rotated to support in tool housing on two bearing positions at least.
Background technology
By this hand held electric tool of prior art cicada, wherein, the drive shaft of being furnished with spindle lock is bearing in tool housing on two bearing positions.At this, spindle lock or be arranged in along the axial direction of drive shaft is arranged in two zones after bearing position or in a plane, its have in two bearing positions, be arranged on transmission device or in the first bearing position.
Prior art disadvantageously, wherein spindle lock is arranged in along the axial direction of drive shaft and is arranged in two zones after bearing position, has a structure length relatively large on the axial direction of drive shaft.In electric tool, spindle lock is arranged in a plane, and it has the first bearing position among being arranged on transmission device in other words, and drive shaft has relatively large slanted gap on the contrary.
Summary of the invention
Therefore the object of the invention is to, a kind of novel hand-held with spindle lock manual manual (handgef ü hrt) in other words electric tool in other words is provided, and this spindle lock reduces can realize simultaneously the structure length of the shortening of electric tool at the slanted gap with its drive shaft.The object of the invention is in addition, a kind of novel hand held electric tool with drive shaft and spindle lock is provided, can reduce at least that occur when the drive shaft inertia motion, the formation of noise that do not expect when it moves.
Described purpose realizes by a kind of hand held electric tool, and it has tool housing, is furnished with one and is used for the transmission of torque that will be produced by the CD-ROM drive motor transmission device on the drive shaft in tool housing, and this drive shaft is equipped with spindle lock.Drive shaft can be rotated to support in tool housing on two bearing positions at least.At least two bearing positions are arranged in tool housing in zone after transmission device.Spindle lock is being arranged on the axial direction of drive shaft between two bearing positions.
Therefore the present invention can provide a kind of hand held electric tool, wherein, by arranging spindle lock between two bearing positions, can be on the axial direction of drive shaft shortening structure length.
According to a kind of embodiment, spindle lock has with radial clearance given in advance and is bearing in supporting member on drive shaft, is furnished with at least one principal axis roller on this supporting member.
Therefore can realize principal axis roller stable and reliable supporting on drive shaft.
At least one principal axis roller is preferably directly clinging on drive shaft between two bearing positions on the axial direction of drive shaft.
Therefore can reduce with simple mode and method the slanted gap of drive shaft.
According to a kind of embodiment, supporting member by at the bearer ring that consists of on its periphery, the first bearing position upper support at least two bearing positions in sliding bearing.
The present invention therefore can realize supporting member in electric tool effectively and the supporting of cost economy.
Sliding bearing preferably is bearing in locking member, and this locking member is designed for, and prevents at least one principal axis roller skidding off from supporting member in the radial direction in drive shaft.
Therefore can safely and reliably principal axis roller be fixed in supporting member.
According to a kind of embodiment, the first bearing position upper support of drive shaft at least two bearing positions is in rolling bearing.
Therefore the present invention can realize drive shaft stable and supportings that relative nothing is worn and torn in electric tool.
Rolling bearing preferably is bearing in locking member, and this locking member is designed for, and prevents at least one principal axis roller skidding off from supporting member in the radial direction in drive shaft.
Therefore can and be fixed in supporting member reliably principal axis roller safety.
Locking member is preferably designed so that annular and can not be connected with tool housing with relatively rotating.
Therefore can locking member be fixed in tool housing with simple mode and method.
Preferably the second bearing position upper support at least two bearing positions is in rolling bearing for drive shaft, and this rolling bearing is bearing in tool housing.
Therefore drive shaft stably can be bearing in electric tool with relative nothing with wearing and tearing.
According to a kind of embodiment, supporting member is designed to sleeve shaped and at least in part around drive shaft, wherein is designed with the recess that at least one is used for holding at least one principal axis roller on supporting member.
Therefore the present invention can provide a kind of supporting member of simple and cost economy, thereon can be safely and supporting spindle roller reliably.
Supporting member preferably can not be connected with the driving element of transmission device with relatively rotating.
Therefore can be with simple mode and method shortening structure length on the axial direction of drive shaft.
According to a kind of embodiment, transmission device is designed to planetary transmission, and driving element is pinion frame.
Therefore the present invention can provide safe and reliable transmission device.
Drive shaft preferably can directly be driven by driving element, wherein forms radial clearance given in advance between driving element and drive shaft.
Therefore can drive drive shaft with simple mode and method.
According to a kind of embodiment, drive shaft can directly be driven by supporting member.
Therefore the present invention can improve the interaction of supporting member, drive shaft and driving element.
According to a kind of embodiment, on drive shaft, can not be furnished with lasso in the zone of the first bearing position at least two bearing positions with relatively rotating, this lasso is bearing in the sliding bearing of attaching troops to a unit.
Therefore can realize rolling bearing is applied on the first bearing position with simple mode and method.
Starting described purpose also realizes by a kind of hand held electric tool with tool housing, be furnished with one and be used for the transmission of torque that will be produced by the CD-ROM drive motor transmission device on the drive shaft in this tool housing, this drive shaft is equipped with spindle lock, and wherein drive shaft can be rotated to support in tool housing on two bearing positions at least.In the zone of spindle lock, be provided with brake apparatus on drive shaft, this brake assembly design is used for, and when electric tool moves, prevents vibration when the drive shaft inertia motion.
Therefore the present invention can provide a kind of hand held electric tool, wherein can reduce at least safely and reliably the formation of noise of not expecting of drive shaft when the inertia motion by the brake apparatus arranged in the zone that is provided at spindle lock.
Preferably, brake apparatus has be used to the O shape ring of realizing braking function.
Therefore a kind of brake apparatus of simple and cost economy can be provided.
On drive shaft, preferably be designed with cannelure in the zone of spindle lock, arrange O shape ring in this cannelure.
Therefore can provide uncomplicated and brake apparatus firmly.
According to a kind of embodiment, spindle lock has one and is bearing in supporting member on drive shaft with radial clearance given in advance.Brake apparatus is arranged in the zone of supporting member.
Therefore the present invention can provide the hand held electric tool with simple and stable spindle lock.
Supporting member preferably can not be connected with the driving element of transmission device with relatively rotating.
Therefore can be with simple mode and method shortening structure length on the axial direction of drive shaft.
Drive shaft preferably can directly be driven by supporting member.
Therefore the present invention can improve the interaction of supporting member, drive shaft and driving element.
According to a kind of embodiment, be furnished with at least one principal axis roller on supporting member.
Therefore the present invention can provide a kind of spindle lock, wherein principal axis roller stably and reliably can be bearing on drive shaft.
At least one principal axis roller is preferably directly clinging on drive shaft between two bearing positions on the axial direction of drive shaft.
Therefore can reduce with simple mode and method the slanted gap of drive shaft.
Supporting member preferably by at the bearer ring that consists of on its periphery, the first bearing position upper support at least two bearing positions in sliding bearing.
Therefore supporting member can be fixed in electric tool economically with cost effectively.
Sliding bearing preferably is bearing in locking member, and this locking member is designed for, and prevents at least one principal axis roller skidding off from supporting member in the radial direction in drive shaft.
Therefore principal axis roller can be fixed in supporting member safely and reliably.
Preferably, at least two bearing positions are arranged in tool housing in zone after transmission device, and spindle lock is being arranged on the axial direction of drive shaft between two bearing positions.
Therefore can be by spindle lock being arranged between two bearing positions and on the axial direction of drive shaft shortening structure length.
Description of drawings
Embodiment shown in reference to the accompanying drawings describes the present invention in detail in the following description.There is shown:
Fig. 1 shows the schematic diagram according to hand held electric tool of the present invention,
Fig. 2 shows the amplification sectional view according to the part of the electric tool of Fig. 1 of the first embodiment,
Fig. 3 shows the perspective exploded view of drive shaft, driving element, sintered bearing, ball bearing and the spindle lock of Fig. 2,
Fig. 4 shows the perspective exploded view of Fig. 3 from another viewing angle,
Fig. 5 shows the sectional view of Fig. 2, has the drive shaft of modification,
Fig. 6 shows the amplification sectional view according to the part of the electric tool of Fig. 1 of the second embodiment,
Fig. 7 shows the perspective exploded view of drive shaft, driving element, sintered bearing, lasso, ball bearing and the spindle lock of Fig. 6,
Fig. 8 shows the amplification sectional view according to the part of the electric tool of Fig. 1 of the third embodiment,
Fig. 9 shows the perspective exploded view of drive shaft, driving element, ball bearing and the spindle lock of Fig. 8,
Figure 10 shows the perspective view of the drive shaft of Fig. 9,
Figure 11 shows the perspective back view of the member of Fig. 9 after installing,
Figure 12 shows the amplification sectional view according to the part of the electric tool of Fig. 1 of the 4th kind of embodiment,
Figure 13 shows the perspective back view of drive shaft, driving element and the spindle lock of Figure 12 after installing,
Figure 14 shows the perspective exploded view of drive shaft, driving element, ball bearing and the spindle lock of Figure 12,
Figure 15 shows the amplification sectional view according to the part of the electric tool of Fig. 1 of the 5th kind of embodiment.
The specific embodiment
Fig. 1 shows hand held electric tool 100, and it has the tool housing 105 with handle 115.According to a kind of embodiment, electric tool 100 can mechanically be connected with batteries 190 with electric ground in order to be independent of mains supply.In Fig. 1, electric tool 100 for example is designed to battery-brill formula bolt screwing machine.Yet it is to be noted, the invention is not restricted to battery-brill formula bolt screwing machine, but can be applied in different, particularly with in battery-driven electric tool, for example in electric screw driver, electric impacting churn etc., wherein instrument is placed in rotation status.
Be furnished with electric drive motor 180 and transmission device 170 by batteries 190 power supplies in housing 105.CD-ROM drive motor 180 is connected with driving shaft 120, for example drive shaft by transmission device 170.CD-ROM drive motor 180 is arranged in motor shell 185 illustratively and transmission device 170 is arranged in gear mechanism housing 110, and wherein gear mechanism housing 110 and motor shell 185 exemplarily are arranged in housing 105.
CD-ROM drive motor 180 for example can be handled, namely switch on and off by hand switch 195, and can be any one motor type, for example electronic commutation motor or direct current generator.Preferably, CD-ROM drive motor 180 can carry out Electronic Control or adjusting by following manner: can not only realize reversible operation and can realize predesignating aspect the rotary speed of expectation.Operation principle and the structure of the CD-ROM drive motor that is fit to are fully known by prior art, thereby have omitted detailed explanation in this purpose for interest of clarity.
Drive shaft 120 can be rotated to support in housing 105 by supporting structure 130 and has instrument receptacle 140, and this instrument receptacle is arranged in distolateral 112 zone of housing 105 and exemplarily has drill chuck head 145.According to a kind of embodiment, supporting structure 130 has at least two bearing positions 132,134, and they are arranged in tool housing 105 in zone 299 after transmission device 170.Arrange the bearing (for example 232 in Fig. 2,234) of attaching troops to a unit on bearing position 132,134, these bearings are as main shaft bearing and supported therein drive shaft 120.Instrument receptacle 140 be used for admittance instrument 150 and can be formed on drive shaft 120 or sleeve shaped ground coupled.In Fig. 1, instrument receptacle 140 exemplarily is designed to sleeve shaped and fixed thereon by the fixture 122 that is arranged on drive shaft 120.
According to a kind of embodiment, drive shaft 120 is equipped with spindle lock 250.This spindle lock is being arranged between two bearing positions 132,134, is preferably directly arranging on the axial direction of drive shaft 120, and is used for when CD-ROM drive motor 180 disconnects, drive shaft 120 being centered.The operation principle of spindle lock is by fully known in prior art, thereby no longer the operation principle of spindle lock 250 is elaborated in this purpose reason for interest of clarity.
Fig. 2 shows the part 200 of the hand held electric tool 100 of Fig. 1, does not wherein show instrument 150 and the instrument receptacle 140 of Fig. 1 for drawings clear and simple purpose.Part 200 has illustrated a kind of exemplary design of planetary transmission 170, drive shaft 120, supporting structure 130 and spindle lock 250 according to a kind of embodiment.
The torque of the CD-ROM drive motor 180 of Fig. 1 is delivered on drive shaft 120 by epicyclic gear stage 272,271,270 profiles 267 that rotarily drive by means of pinion frame 204.At this, pinion frame 204 is as driving element, in order to make drive shaft 120 rotary actuations.Because the structure of planetary transmission is fully known for technicians, therefore no longer epicyclic gear stage 271,272 is further illustrated in this purpose for interest of clarity.
Epicyclic gear stage 270,271,272 is arranged in gear mechanism housing 110 illustratively, and this gear mechanism housing exemplarily is designed to three parts and has front portion 210, mid portion 212 and rear portion 214.Anterior 210 have external screw thread 282 illustratively, exemplarily rotatably mounted adjustable ring 295 on this external screw thread.Forwardly exemplarily be designed with annular shoulder 201 on 210 interior week.
Drive shaft 120 has three and is designed to illustratively externally threaded fixture 122, the fixing drill chuck head 145 of the instrument receptacle 140 of Fig. 1 on this fixture, wherein, external screw thread 122 for example can carry out screw-threaded engagement with the internal thread that is arranged on drill chuck head 145.In addition, for example be provided with support flange 255 on drive shaft 120.
Supporting structure 130 has illustratively: sliding bearing 232, for example sintered bearing; With rolling bearing 234, for example ball bearing.On bearing position 132 also referred to as the first bearing position below sintered bearing 232 exemplarily is arranged in, after its side in the instrument receptacle 140 of Fig. 1 looks up and preferably is set directly at pinion frame 204 and transmission device 170.On bearing position 134 also referred to as the second bearing position below ball bearing 234 exemplarily is arranged in, its side in the instrument receptacle 140 of Fig. 1 looks up spaced apart with pinion frame 204 and transmission device 170, and is bearing on support flange 255.
According to a kind of embodiment, spindle lock 250 has with radial clearance given in advance and is bearing in supporting member 252 on drive shaft 120, is furnished with at least one principal axis roller 254 on this supporting member.Its axial direction in drive shaft 120 abuts on drive shaft 120 between two bearing positions 132,134, preferably directly between sintered bearing 232 and ball bearing 234.Be alternative in this, principal axis roller 254 for example can abut on the interior ring of ball bearing 234.Sintered bearing 232 and at least one principal axis roller 254 are bearing in locking member 256, locking member is attached troops to a unit equally in spindle lock 250 and is designed for, and prevents at least one principal axis roller 254 skidding off in the radial direction in drive shaft 120 from supporting member 252.
Locking member 256 for example is designed to annular and at least indirectly can not be connected with tool housing 105 with relatively rotating.Illustratively, locking member 256 can not be pressed in the front portion 210 of gear mechanism housing 110 with relatively rotating, wherein, not only in the axial direction but also in the radial direction, corresponding gap can be set in tolerance given in advance.Be alternative in this, locking member 256 can seamlessly be connected with gear mechanism housing 110.For example, locking member 256 can consist of or for example be formed on it by the plastics plastic-blasting with gear mechanism housing 110 one.
Fig. 3 shows pinion frame 204, sintered bearing 232, locking member 256, supporting member 252, principal axis roller 254, ball bearing 234 and the drive shaft 120 of Fig. 2.As above-mentioned, locking member 256, supporting member 252 and principal axis roller 254 have formed spindle lock 250 that be connected with drive shaft 120, Fig. 2.
According to a kind of embodiment, drive shaft 120 support flange 255, have tension ring 378 on the side of external screw thread 122, it finishes with annular shoulder 388 illustratively.From the annular shoulder 388s, drive shaft 120, with the direction of external screw thread 122 opposed axial end portions on, it has one or more sides of scabbling 364, this side at its quantitative aspects preferably corresponding to the quantity of principal axis roller 254.In addition, drive shaft 120, with the opposed axial end portion of external screw thread 122 on consist of the recess 382,384 of flute profile.
Supporting member 252 is designed to illustratively sleeve shaped and has bearer ring 340 on its periphery, and this bearer ring preferably consists of or forms thereon at least with supporting member 252 one.Be provided with axial expansion section 322,324,326 on an axial end portion of bearer ring 340, it extends radially outwardly equally and crosses the periphery that is formed by bearer ring.Be provided with the holding element 312,314,316 of pin form on another axial end portion of bearer ring 340, be used for supporting member 252 is fixed on pinion frame 204.
Axial and extension 322,324 radially, 326 forms recess 352,354,356, is used for holding corresponding principal axis roller.Illustratively, principal axis roller 254 is designed for and is contained in recess 354.Yet it is pointed out that the recess that can be provided with any amount, be used for holding the principal axis roller of any amount.
Locking member 256 has a plurality of radially outer juts 302,304,306,308 illustratively.These juts be used for can not relatively rotate locking member 256 is fixed on the front portion 210 of the gear mechanism housing 110 of Fig. 2, as below as described in Fig. 6.
Below, described exemplarily be arranged on sintered bearing 232, locking member 256, supporting member 252, principal axis roller 254, ball bearing 234 and drive shaft 120 on pinion frame 204 or the front portion 210 of the gear mechanism housing 110 of Fig. 2 in.At this, at first ball bearing 234 be pressed onto on the tension ring 378 on drive shaft 120 and therewith be pressed into subsequently in the opening of screw thread outward 122 of the front portion 210 in Fig. 2, until ball bearing 234 clings on the annular shoulder 201 of Fig. 2.Subsequently, from drive shaft 120 with the opposed axial end portion of external screw thread 122, in the axial direction locking member 256 is shifted onto on drive shaft, and be pressed in the following manner in anterior 210, can not be connected in relative rotation with front portion 210 by its jut 302,304,306,308 generations radially.
Subsequently, in shifting onto supporting member 252 and the principal axis roller 254 of arranging in its recess 352,354,356 on drive shaft 120 and therefore being inserted into locking member 256, thus supporting member 252 at least in part around drive shaft 120 and principal axis roller 254 cling to Fig. 2 annular shoulder 201 on the side of ball bearing 234.In order to realize the as far as possible little slanted gap of drive shaft 120 at this, between main shaft 120 and supporting member 252 possible, gap radially is preferably very little.Preferably, the connection between main shaft 120 and supporting member 252 is gapless.In addition, principal axis roller 254 clings on the side of scabbling 364 of drive shaft 120.
Below, sintered bearing 232 is shifted onto on the bearer ring 340 of supporting member 252, and with the holding element 312,314 of its pin form, 316 and drive shaft 120 be fixed on like this in the maintenance and driving device 450 of pinion frame 204, gapped shape is sealed to be bearing on pinion frame 204 by radially being with to make at least drive shaft 120.At this, principal axis roller 254 preferably directly is arranged between sintered bearing 232 and ball bearing 234 as described above.
Fig. 4 shows pinion frame 204, sintered bearing 232, locking member 256, supporting member 252, principal axis roller 254, ball bearing 234 and the drive shaft 120 of Fig. 3.Described exemplary at second side of scabbling 462 and another jut radially 402 on locking member 256 on drive shaft 120 in Fig. 4.
According to a kind of embodiment, the maintenance of pinion frame 204 and driving device 450 have and keep groove 412,414,416 and drive bar 482,484,486.Be used for preferably seamlessly holding the holding element 312,314 or 316 of the pin form of supporting member 252 in the installation that keeps groove 412,414,416 to describe in Fig. 3.Driving bar 482,484,486 is designed for, join in the slotted recess 382,384 of drive shaft 120 with radial clearance given in advance in suitable tolerance in the installation of describing in Fig. 3, in order to therefore can directly realize the rotary actuation of drive shaft 120 by pinion frame 204.
Yet it is pointed out that at the embodiment shown in Fig. 2 to 4 and only have exemplary feature and should not be construed as limitation of the present invention.Or rather, in category of the present invention, the multiple modification of one or more members is all possible, as long as guarantee the creative function of the spindle lock 250 of Fig. 2 to 4.For example, supporting member 252 can be carried out supporting functions, is used for locking member 256 is bearing in the first bearing position 132, thereby can omits sintered bearing 232.In a kind of interchangeable solution, supporting member 252 can be designed to than shown in shorter, thereby sintered bearing 232 can directly be pressed in the front portion 210 of gear mechanism housing 110.In addition, locking member 256 can be forwardly in 210 for example shape utilize in locking manner plastic injection-moulded sealing (umspritzen), replace annular shoulders 201 as the stop surface that is used for ball bearing 234 thereby be injection molding the locking member 256 of sealing.In addition, pinion frame 204 and supporting member 252 for example can one consist of or supporting member 252 can be formed on pinion frame 204 or for example by means of welding or be pasted and fixed on it, as exemplarily shown in Figure 15.
Fig. 5 shows Fig. 3 after the installation described and 4 layout in Fig. 3.In Fig. 5, drive shaft 120 has cannelure 510 illustratively in the zone of supporting member 252, for example is furnished with O shape ring 520 in this cannelure.Therefore it has realized the braking function between supporting member 252 and drive shaft 120, so that when electric tool 100 operation of Fig. 1,120 inertia motions of gear drive shaft prevent vibration when inertia slides (Auslauf) in other words.
Fig. 6 shows the principal axis roller 254 of locking member 256, supporting member 650, lasso 632 and Fig. 2 to 4 of pinion frame 204, sintered bearing 232, ball bearing 234 and drive shaft 620 and Fig. 2 to 4 of Fig. 2 to 4, and it forms according to the spindle lock 610 of another kind of embodiment and is arranged in the front portion 210 of Fig. 2.Supporting member 650 has annular flange flange 664 illustratively, on this annular flange flange, be designed with in the axial direction the holding element 616 of pin form, and be designed with at least one for holding the recess 652 of principal axis roller 254 and axial extension 662 on relative axial direction.
Drive shaft 620 is compared short with the drive shaft 120 of Fig. 2 to 5 and is had at least one side of scabbling 654, and this side is transited into the recess 622 of flute profile on the axial direction that deviates from support flange 255.It is for the holding element 616 of the pin form of holding supporting member 650.In the zone of the holding element 616 of this pin form, be furnished with lasso 632 on drive shaft 620, lasso preferably is pressed on drive shaft.This lasso is bearing in sintered bearing 232.
Fig. 7 shows the layout of the Fig. 6 before corresponding the installation, and does not comprise front portion 210, and it is similar in top Fig. 3 and describes.According to a kind of embodiment, be designed with other the holding element 712,714 of pin form of the holding element 616 of pin form and two on the annular flange flange 664 of supporting member 650, and axial expansion section 662 and two other axial expansion section 764,766, these extensions have formed other recess of recess 652 and two, are used for holding other principal axis roller of principal axis roller 254 and two.
Drive shaft 620 has the main shaft 790 that deviates from support flange 255 illustratively, is provided with the tension ring 378 for fulcrum ball bearing 234 on this main shaft, and it utilizes annular shoulder 788 to finish illustratively.Be connected with at least one side of scabbling 654 thereon, it is transited into slotted recess 622.In addition, have the cross section of arc two sides 782, be connected to illustratively in 784 o'clock on annular shoulder 788, it is transitioned into illustratively at least one, in preferred three bars, wherein can sees two bars 794,796 in Fig. 7 on another shoulder 786.
Fig. 8 shows the layout of Fig. 7 after installation, wherein replaces lasso 632 and sintered bearing 232 to use rolling bearing 832, for example ball bearing.It is pressed onto on drive shaft 620 and supporting member 650 as the lasso 632 of Fig. 6.In addition, ball bearing 832 is pressed in locking member 256.
Fig. 9 shows the layout of Fig. 8 before installing.Fig. 9 has described to use lasso 632 and the sintered bearing 232 that ball bearing 832 replaces Fig. 6 and 7.
Figure 10 shows the drive shaft 620 of Fig. 6 to 9.Can see in Figure 10 another 1094 and another recess 1022.
Figure 11 shows the rearview of the layout of Fig. 8, has essentially noly at least to be bearing in gap the supporting member 650 on pinion frame 204 and to be bearing in equally drive shaft 620 on pinion frame 204.This drive shaft such as above-mentioned gapped shape is sealed to be bearing on pinion frame 204 by radially being with, thereby the bar 794,796 of drive shaft 620,1094 and drive be designed with respectively between groove 724,728 or 726 one in suitable tolerance gap 1120 given in advance, its for accompanying drawing succinct and clearly purpose only illustrate once in Figure 11.
When electric tool 100 operation of Fig. 1, according to directly having realized the driving of drive shaft 620 by the pinion frame 204 that is used as driving element at the embodiment shown in Fig. 2 to 11.Although it can with respect to drive shaft 620 rotations, preferably can not rotate with respect to supporting member 650.
Figure 12 illustrates the ball bearing 832,234 and the principal axis roller 254 of drive shaft 1220 and locking member 1256, supporting member 1252 and Fig. 2 to 11 of pinion frame 204, Fig. 8, they are arranged in the front portion 210 of Fig. 2 and form spindle lock 1210 according to another kind of embodiment, wherein supporting member 1252 is as driving element, as following as described in Figure 13.Locking member 1256 is compared with the locking member 256 of Fig. 2 to 11 and is preferably shortened like this ground design, makes this locking member basically only surround a zone of supporting member 1252 and drive shaft 1220, wherein is furnished with at least one principal axis roller 254.
Be provided with illustratively the bearer ring 340 of Fig. 3 on supporting member 1252.For example be pressed in anterior 210 or come the ball bearing 832 of plastic-blasting to be pressed onto on this bearer ring by plastic injection-moulded.
Figure 13 shows the layout of Figure 12, and does not comprise anterior 210.Figure 13 shows a plurality of radially protuberances 1302,1304,1306,1308, and they exemplarily are arranged in locking member 1256.
According to a kind of embodiment, the axial end region 1242 of drive shaft 1220 is arranged in supporting member 1252, radially is with gapped shape sealed in order to be formed between drive shaft 1220 and supporting member 1252.For this reason, illustratively, two of radially inner drive bar 1292 and supporting member 1252 other radially inner drive bars 1364,1366 drive groove 1278 in other words in two other drive grooves 1354,1356 of joining drive shaft 1220 to radial clearance given in advance in the tolerance that is fit to.
Be designed with exemplarily between supporting member 1252 and pinion frame 204 that gapless shape is sealed at least basically, thereby the supporting member 1252 that driven by pinion frame 204 of being in operation is as driving element and drive shaft 1220 is driven.For this reason, on supporting member 1252 exemplarily design, radially outer drive bar 1392,1394,1396 joins in corresponding drive groove 1374,1378 or 1376, maintenance and driving device 1305 that it is attached troops to a unit and forms on pinion frame 204.
Figure 14 shows the layout of the Figure 13 before corresponding the installation.Figure 14 has illustrated the exemplary design of supporting member 1252.
Figure 15 shows the layout according to Fig. 2 of a kind of embodiment, and wherein, the pinion frame 204 of Fig. 2 and supporting member 252 exemplarily one consist of and form illustrative driving element 1550.
Claims (26)
1. a hand held electric tool (100), has tool housing (105), be furnished with one and be used for the transmission of torque that will be produced by CD-ROM drive motor (180) transmission device (170) on the drive shaft (120) in described tool housing, described drive shaft is equipped with spindle lock (250), wherein said drive shaft (120) is bearing at least two bearing positions (132 revolvably in described tool housing (105), 134) on, it is characterized in that, described at least two bearing positions (132, 134) be arranged in described tool housing (105) in described transmission device (170) zone (299) afterwards, and described spindle lock (250) is arranged in described two bearing positions (132 on the axial direction of described drive shaft (120), 134) between.
2. electric tool according to claim 1, it is characterized in that, described spindle lock (250) has with radial clearance given in advance and is bearing in supporting member (252) on described drive shaft (120), is furnished with at least one principal axis roller (254) on described supporting member.
3. electric tool according to claim 2, it is characterized in that, described at least one principal axis roller (254) is directly clinging on described drive shaft (120) between described two bearing positions (132,134) on the axial direction of described drive shaft (120).
4. according to claim 2 or 3 described electric tools, it is characterized in that, described supporting member (252) by at the bearer ring that consists of on its periphery (340), the first bearing position (132) upper support in described at least two bearing positions (132,134) in sliding bearing (232).
5. electric tool according to claim 4, it is characterized in that, described sliding bearing (232) is bearing in locking member (256), described locking member is designed for, and prevents described at least one principal axis roller (254) skidding off from described supporting member (252) in the radial direction in described drive shaft (120).
6. according to claim 2 or 3 described electric tools, is characterized in that, first bearing position (132) upper support of described drive shaft (120) in described at least two bearing positions (132,134) is in rolling bearing (832).
7. electric tool according to claim 6, it is characterized in that, described rolling bearing (832) is bearing in locking member (856), described locking member is designed for, and prevents described at least one principal axis roller (254) skidding off from described supporting member (252) in the radial direction in described drive shaft (120).
8. the described electric tool of any one according to claim 4 to 6, is characterized in that, described locking member (256; 856) be designed to annular and can not being connected with described tool housing (105) with relatively rotating.
9. the described electric tool of any one according to claim 2 to 8, it is characterized in that, second bearing position (134) upper support of described drive shaft (120) in described at least two bearing positions (132,134) is in rolling bearing (234), and described rolling bearing is bearing in described tool housing (105).
10. the described electric tool of any one according to claim 2 to 9, it is characterized in that, described supporting member (252) is designed to sleeve shaped and at least in part around described drive shaft (120), wherein, be designed with the recess (354) that at least one is used for holding described at least one principal axis roller (254) on described supporting member (252).
11. according to claim 2 to 10, the described electric tool of any one, is characterized in that, described supporting member (252) can not be connected with the driving element (204) of described transmission device (170) with relatively rotating.
12. electric tool according to claim 11 is characterized in that, described transmission device (170) is designed to planetary transmission, and described driving element (204) is pinion frame.
13. according to claim 11 or 12 described electric tools, it is characterized in that, described drive shaft (120) can directly be driven by described driving element (204), wherein forms radial clearance given in advance between described driving element (204) and described drive shaft (120).
14. according to claim 11 or 12 described electric tools is characterized in that, described drive shaft (120) can directly be driven by described supporting member (252).
15. electric tool according to claim 1, it is characterized in that, on described drive shaft (120), can not be furnished with lasso (632) in the zone of the first bearing position (132) in described at least two bearing positions (132,134), described lasso is bearing in the sliding bearing (232) of attaching troops to a unit with relatively rotating.
a 16. hand held electric tool (100), has tool housing (105), be furnished with one and be used for the transmission of torque that will be produced by CD-ROM drive motor (180) transmission device (170) on the drive shaft (120) in described tool housing, described drive shaft is equipped with spindle lock (250), wherein said drive shaft (120) is bearing at least two bearing positions (132 revolvably in described tool housing (105), 134) on, it is characterized in that, in the zone of described spindle lock (250), be provided with brake apparatus (520) on described drive shaft (120), described brake assembly design is used for, when described electric tool (100) moves, prevent vibration when described drive shaft (120) inertia motion.
17. electric tool according to claim 16 is characterized in that, described brake apparatus (520) has be used to the O shape ring (520) of realizing braking function.
18. electric tool according to claim 17 is characterized in that, on described drive shaft (120), is designed with cannelure (510) in the zone of described spindle lock (250), arranges described O shape ring (520) in described cannelure.
19. according to claim 16 to the described electric tool of any one in 18, it is characterized in that, described spindle lock (250) has one and is bearing in supporting member (252) on described drive shaft (120) with radial clearance given in advance, and wherein said brake apparatus (520) is arranged in the zone of described supporting member (252).
20. electric tool according to claim 19 is characterized in that, described supporting member (252) can not be connected with the driving element (204) of described transmission device (170) with relatively rotating.
21. electric tool according to claim 20 is characterized in that, described drive shaft (120) can directly be driven by described supporting member (252).
22. according to claim 19 to the described electric tool of any one in 21, it is characterized in that, be furnished with at least one principal axis roller (254) on described supporting member (252).
23. electric tool according to claim 22, it is characterized in that, described at least one principal axis roller (254) is directly clinging on described drive shaft (120) between described two bearing positions (132,134) on the axial direction of described drive shaft (120).
24. according to claim 22 or 23 described electric tools, it is characterized in that, described supporting member (252) by at the bearer ring that consists of on its periphery (340), the first bearing position (132) upper support in described at least two bearing positions (132,134) in sliding bearing (232).
25. electric tool according to claim 24, it is characterized in that, described sliding bearing (232) is bearing in locking member (256), described locking member is designed for, and prevents described at least one principal axis roller (254) skidding off from described supporting member (252) in the radial direction in described drive shaft (120).
26. according to claim 16 to the described electric tool of any one in 25, it is characterized in that, described at least two bearing positions (132,134) are arranged in described tool housing (105) in described transmission device (170) zone (299) afterwards, and described spindle lock (250) is being arranged on the axial direction of described drive shaft (120) between described two bearing positions (132,134).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010042497 | 2010-10-15 | ||
| DE102010042497.8 | 2010-10-15 | ||
| DE102011005553.3 | 2011-03-15 | ||
| DE102011005553A DE102011005553A1 (en) | 2010-10-15 | 2011-03-15 | Hand-held power tool with a Spindellockvorrichtung |
| PCT/EP2011/066897 WO2012049024A2 (en) | 2010-10-15 | 2011-09-28 | Hand-held electric tool having a spindle-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103153549A true CN103153549A (en) | 2013-06-12 |
Family
ID=45895909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800497127A Pending CN103153549A (en) | 2010-10-15 | 2011-09-28 | Hand-held electric tool having a spindle-locking device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9724816B2 (en) |
| EP (2) | EP2627483B1 (en) |
| CN (1) | CN103153549A (en) |
| DE (1) | DE102011005553A1 (en) |
| WO (1) | WO2012049024A2 (en) |
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| CN104249346A (en) * | 2013-06-26 | 2014-12-31 | 罗伯特·博世有限公司 | Handheld machine tool having a spindle-locking device |
| CN104249345A (en) * | 2013-06-26 | 2014-12-31 | 罗伯特·博世有限公司 | Handheld machine tool having a spindle-locking device |
| CN107283368A (en) * | 2016-04-01 | 2017-10-24 | 苏州宝时得电动工具有限公司 | Hand-held tool and its operating method |
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| US9233461B2 (en) * | 2012-02-27 | 2016-01-12 | Black & Decker Inc. | Tool having multi-speed compound planetary transmission |
| TWM562747U (en) * | 2016-08-25 | 2018-07-01 | 米沃奇電子工具公司 | Impact tool |
| EP3338959A1 (en) * | 2016-12-23 | 2018-06-27 | HILTI Aktiengesellschaft | Tool device |
| CN107225538A (en) * | 2017-07-17 | 2017-10-03 | 群胜科技（苏州）有限公司 | Electric tool spindle locking device |
| US10850358B2 (en) | 2018-11-30 | 2020-12-01 | G.A.W. Inc. | Spindle locking apparatus for a rotary power tool |
| JP7263155B2 (en) * | 2019-06-28 | 2023-04-24 | 株式会社マキタ | Electric tool |
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| CN104249346A (en) * | 2013-06-26 | 2014-12-31 | 罗伯特·博世有限公司 | Handheld machine tool having a spindle-locking device |
| CN104249345A (en) * | 2013-06-26 | 2014-12-31 | 罗伯特·博世有限公司 | Handheld machine tool having a spindle-locking device |
| CN104249345B (en) * | 2013-06-26 | 2019-01-04 | 罗伯特·博世有限公司 | Hand held power machine with spindle lock |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2627483B1 (en) | 2015-05-06 |
| WO2012049024A2 (en) | 2012-04-19 |
| US20130270051A1 (en) | 2013-10-17 |
| WO2012049024A3 (en) | 2012-09-07 |
| EP2913159A1 (en) | 2015-09-02 |
| DE102011005553A1 (en) | 2012-04-19 |
| US9724816B2 (en) | 2017-08-08 |
| EP2627483A2 (en) | 2013-08-21 |
| EP2913159B1 (en) | 2016-12-28 |
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Application publication date: 20130612 |